US 11,749,815 B2
Wet seal caulk with enhanced chemical resistance
Matthew T. Snider, Danbury, CT (US); and Chao-yi Yuh, New Milford, CT (US)
Assigned to FUELCELL ENERGY, INC., Danbury, CT (US)
Filed by FuelCell Energy, Inc., Danbury, CT (US)
Filed on Aug. 31, 2020, as Appl. No. 17/8,127.
Application 17/008,127 is a continuation of application No. 15/916,029, filed on Mar. 8, 2018, granted, now 10,790,521.
Prior Publication US 2020/0395622 A1, Dec. 17, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 8/00 (2016.01); H01M 8/0282 (2016.01); C04B 35/488 (2006.01); C04B 35/50 (2006.01); H01M 8/14 (2006.01); C04B 38/00 (2006.01); H01M 8/2485 (2016.01); H01M 8/0286 (2016.01); H01M 8/244 (2016.01)
CPC H01M 8/0282 (2013.01) [C04B 35/488 (2013.01); C04B 35/50 (2013.01); C04B 38/0054 (2013.01); H01M 8/145 (2013.01); H01M 8/2485 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3244 (2013.01); H01M 8/0286 (2013.01); H01M 8/244 (2013.01); H01M 2008/147 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A caulk composition comprising:
at least one powder component, wherein:
the powder component is a ball-milled powder component comprising ceria, zirconia, alumina, or a combination thereof,
the powder component is a heat-treated powder component that has been heated to a temperature of at least 1500° C.,
the powder component is present in a concentration range of 65 wt % to 75 wt % of the caulk composition, and
the powder component has a particle size distribution of 95% less than 25 μm and 90% greater than 1 μm; and
at least one binder component, wherein the binder component is present in a concentration range of 25 wt % to 35 wt % of the caulk composition.